Im pretty sure there going to show something during e3 for FRN, some people think were getting a new F-Zero, some people think that its going to become an F-Zero which i doubt that.
They have been doing a lot of F-Zero stuff lately, all the games on VC and the MK8 stuff, could be a surprise they have been keeping under wraps, if we are getting a Star Fox then why not F-Zero and i know they have said in past they dont know what they could do with it, but the series is well over a decade overdue, a guy can dream lol